Body styleArmBore diameter (in)1-1/4Bore shapeRoundBore typeShaft-ReadyChain number820Height1.75Length5.75MaterialCast IronNumber of keyways1Number of set screws1 SetscrewNumber of Teeth23Pitch diameter (in)5.508Pitch diameter (mm)139.9Sprocket constructionCast-Iron Non-Split SprocketSprocket Series820Width5.75
| Body style | Arm |
| Bore diameter (in) | 1-1/4 |
| Bore shape | Round |
| Bore type | Shaft-Ready |
| Chain number | 820 |
| Height | 1.75 |
| Length | 5.75 |
| Material | Cast Iron |
| Number of keyways | 1 |
| Number of set screws | 1 Setscrew |
| Number of Teeth | 23 |
| Pitch diameter (in) | 5.508 |
| Pitch diameter (mm) | 139.9 |
| Sprocket construction | Cast-Iron Non-Split Sprocket |
| Sprocket Series | 820 |
| Width | 5.75 |